Paste dispenser



R. L. M CARTHY PASTE DISPENSER June 5, 1956 Filed June 3 1953 M 4 f mw 2M 3 M 4 w 2 2 z J x Z Q. RRQKQQRQSO Q 6 I M a 1 I H h I w Z \(M\ I 8 z wINVENTOR.

Rose/e7- L. M: CART/l) United States Patent PASTE DISPENSER Robert "L.McCarthy, Worcester, Mass Aipplication June.3, 1953,-'SerialINo. 359,277

3'Claims. '(Cl; 222-387,)

This invention relates to a .new and improved paste dispenser whichis'pa'rticula'rly ofthe' type for housing a quantity. of: pastetobe.used for any purpose such-ascl'eaning teeth, shaving, etc., and thedevice may be made portable for traveling or it may be mounted upon awall for in-position dispensing.

The principal object of the invention resides in the provision of adevice as described including a housing, in combination with extensiblemeans which is manually manipulatable to extend a device exertingpressure upon the paste contained within a cylinder, compartment orhousing, said means being extensible to a degree several times longerthan its original extent within the first-named housing, so as toprovide for a device which is very small but which is capable ofdispensing a relatively large amount of paste material.

Another object of the invention resides in the provision of a pastedispenser provided with means therein including a set of multipleextensible telescoping screw devices including a pusher or piston forextruding paste-like material from the dispenser, the essentialcharacteristics of the screw-operated device residing in a series ofscrews contained one within the other and decreasing in diameter fromthe largest to the smallest, the latter being furthest extended, for thepurpose of providing an extremely long piston or pusher means fordispensing the paste within a cylinder or other container therefor.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which Fig. l isa vertical sectional view through a device according to the presentinvention;

Fig. 2 is a view in elevation thereof, part being broken away and insection; and

Fig. 3 is a view in elevation, partly in section, of a pastecontainingenclosure for application to the dispenser of the present invention.

In carrying out the present invention, there is provided an elongatedcylinder generally indicated by the numeral 10. This cylinder isprovided with an open end screwthreaded exteriorly thereto at 12 whichfits into the open end of a complementary threaded cap member 14. Thecylinder is provided with a closed end 16 having a small central opening18 normally closed by a springpressed detent or ball 20 located in aclosure cap 22 swivelly mounted at 24 upon the wall of the cylinder. Theball or detent 20 normally closes the opening 18 but when the cap 22 isswung to one side as shown in dotted lines in Fig. 2, the paste may beextruded.

The cap 14 is provided with an interior member 26 which is provided withinternal screw-threads 28. These threads accommodate the largest initialmember 30 of multiple part telescoping screw which is clearly shown inFig. 2 as completely extended. The member 30 is hollow, internallythreaded, and accommodates the next member of the telescoping screw 32,which in turn is hollow and threaded internally to accommodate themember ,2 3.4. The .member. 3.4 terminates. in a discor plunger 36wliich..actually, bears upon. and translates: downwardly a disc. 38..normally .foundiin the .paste container to be described.

Tlimrneniber 26. is provided with a handle 40. which uponrb'eing,turned, .causes the :telescoping .screw to be ex? tendedfrom a conditionwherein member-34 is completely housedwithin member 32 and 32iscompletely housed withinymemberz 3.0, .the latter in. turn beingcompletely housed. withinmember, 26. Each member30, 32 and .34 may. beprovided withcooperating .stop, means .toprevent extensionvofanysmaller. member completely outofits larger member.

The extensible screw comprisingthe members. 30, 32 andf34-.are.all'.made .hollow. accommodating a spring in-. dicated at 50..Thi'sspringprovides pressure tending to withdraw telescopingscrewmembers ,to. original .pos'ition, so that upon reverse rotationo'f'the'handle 40, the screw members will be retracted and housed. Thisspring is shown for purposes of disclosure only and other means may beprovided for accomplishing the same purpose and in fact the spring isnot completely necessary inasmuch as manual pressure could be applied byone hand when the handle is turned by the other hand.

The cylinder 10 may be mounted upon a wall at any height by means of anykind of bracket desired as at 42 and when the paste is completely usedup, the cap 14 may be turned off from the cylinder 10, the handle turnedcompletely retracting the members 32, 34 as above described, and a newamount of paste may be then inserted in the cylinder 10 and the cap 14re-applied thereto.

One convenient container for the paste may include a cardboard cylinder44 having a tab 46 easily removed to provide an outlet for the pastecoinciding with that at 18. A cap of any material 48 may be used toclose the container 44 for retail sale and handling and it is preferredthat a disc 38 be used for impingement thereon by the disc 36 as abovedescribed. This makes the dispensing and handling of the paste mucheasier because of the fact that the used container 44 is easilyextracted and a new one then merely dropped into place in the device.

Having thus described my invention and the advantages thereof, I do notwish to be limited to the details herein disclosed, otherwise than asset forth in the claims, but what I claim is:

1. A paste dispenser comprising a cylinder having a closed and an openend and an outlet at the closed end thereof, a swinging closure forselectively covering or exposing said outlet, a removable cylindricalcap selectively closing or opening the open end of the cylinder, ahollow rotatable interiorly threaded member located and held in saidcylindrical cap against axial motion, a handle for rotating saidthreaded member in the cap, a hollow internally and externallyscrew-threaded element threaded into said member by the exterior threadsthereof, a second hollow screw-threaded telescoping element engaged insaid first-named element, said handle being effective to extend theelements to their full extent from said firstnamed member, and saidelements being substantially wholly received and housed in the cap infully retracted condition, said cap being removable from the cylinderfor filling the latter.

2. A paste dispenser comprising a cylinder having a closed and an openend and an outlet at the closed end thereof, a swinging closure forselectively covering or exposing said outlet, a removable cylindricalcap selectively closing or opening the open end of the cylinder, a

hollow rotatable interiorly threaded member in said cylindrical cap, ahandle rigidly connected to said member for rotating said membertherein, a hollow screwthreaded element threaded into said member, asecond hollow screw-threaded telescoping element threaded into saidfirshnamed element, said handle, when turned, being effective to extendthe elements to their full extent from said first'named member, a springlocated within the hollow screw-threaded elements and connected toopposite ends of the hollow elements tending to telescope the same.

3. A paste dispenser comprising a cylinder having a closed and an openend and an outlet at the closed end thereof, a swinging closure forselectively covering or exposing said outlet, a cylindrical capselectively closing or opening the open end of the cylinder, a hollowrotatable interiorly threaded member in said cylindrical cap, a handlerigidly connected to the member for rotating said member therein, ahollow screw-threaded element threaded into said member, a second hollowscrewthreaded telescoping element threadedly engaged in said first-namedelement, and a third hollow element, telescopingly, threadedly engagedin the second element, said elements decreasing in diameter from thefirst-named to the last, said handle when turned being elfective toextend the elements to their full extent from said first-named 4 member,and said elements being substantially wholly received and housed in thecap in fully retracted condition, said cylinder being a separable tubeconnectible to the cap with all said elements received in the latter,and a fixture to support the cylinder in fixed relation to a wall or thelike.

References Cited in the file of this patent UNITED STATES PATENTS1,249,957 Hess Dec. 11, 1917 1,274,699 Estes Aug. 6, 1918 1,285,086Falkinburg Nov. 19, 1918 1,299,235 Sanderson Apr. 1, 1919 1,906,837Brochu May 2, 1933 2,029,055 Burke Jan. 28, 1936 2,557,374 Cripe June19, 1951 2,582,156 Peterson Jan. 8, 1952 FOREIGN PATENTS 669,856 FranceAug. 10, 1929

